Geologic History: The Geologic Time Scale

interactive Timeline: Earth’s Continents Through Time

The timeline below shows you how Earth’s continents have changed location through the Phanerozoic Eon. How has the location of your home changed through geologic time? Would it have ever been possible to walk from North America to Africa or to visit the north pole without seeing water? As you go through the timeline, notice how oceans have opened up and closed and how the continents have migrated around the globe. This is all because of the action of plate tectonics.

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